Improved steering-apparatus



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` bevel-gears.

" HENRY EDWARDSKINNER, 4,or- LONDOMENGLAND, AesiGNoR To WILLIAM I-IOPCRAF'Ii-OF SAMEPLACE; v i

Letters PatenrNo. 95,7278, dated September 28, 1869.

f 'Y IMPRov'nD' STEERING-APPARATUS.

r Thechedule Vreferred te in these-Letters Patent and making part ofthe-same.

To all whom itmay concerti: d

Be it known that I, HENRY EDWARD SKINNER, of

` London, England, have invented a new and improvedv Steering-Apparatus; and I do hereby declare that the following is a-ful'l, clear, and exact description thereof, which` will enable those skilled in the art to make and `use the same, reference beinghad to the accompanying drawings, forming part yof this specilication, in

Figure 1, sheet 1,; represents a ,perspective view of the base' of the outer cylinder, `showing the vertical grooves in which the cross-head works; y Figure 2 represents a perspective view of my improved steering-apparatus.

/ Figure )3 is a perspective view of theinuer cylinder with rudder, showing how the lowerl pai-tof the cylinder is attached `to `the coupling on the rudder-head.

Figured isa rear elevation of the steering-apparatus, a portion of the outer cylinder beingbroken away, the helm being,hard-a-p'ortrv i i Figure 5 is a similar view,showing thehelm amidship. i FigureG is a si'inilar view, showing the helm harda-starboard. Y i

- Figure 7, sheet 2,' is azvertical sectionoi my imr yproved,steering-apparatus.

iigure 8 is a horizontal sectionfof the same, taken on` the `planeiof the line aa x, gf'i'.

Similar letters j of i reference4 indicate corresponding parts.

This invention `relates to,anewstecring-apparatos i which, while it is `of very simple construction, will develop much power, and give full charge of the rudder.

Theinvention consists in the application` of i two screws, working onel within the other. f

Both screws are vertical, and-form, in fact, a combination of the, rudder-head. i

`The innerscrew is turnedby means o i' the steeringwheel,'eitherfdirectly, or `by an interposedsystem of'.

, v. l On this screw is arranged a` nut, which has projecting arms working in straight lvertical slots or grooves,

that are, formed inan outer casing. i t i Thereby themutis' caused to moved' 'ectly up or down when the'inner screw is turned.

,` The arms ofthe nut t Aalso through spiral slots formed through atub that is-ttedibetween the inner screw andthe outer shell, and vthat constitutes the second sere-w. V i As the nut is moved up `or down, its arms Vmoving in the-spiral 'slots,xwill` cause the said slotted tubeto' y turn slowly, and as` `saidtube is lconnected with the rudder, theda'tter. will also'be turned. q A.v very steady and considerable power is thus ob-J:

tained', andthe rudder will be under complete control,

rudder D, as is clearly shown in iig. 3.

` Patent- 'while it cannot be turned by any action of water or otherwise, directly. l y

This apparatus, while4 having the outward vform of a' common rudder-box, will. occupy very little space on deck, presents no machinery to interfere with the working of the ship, and none that may be easily i11- jured in action.`

AL is the .ex-tel port of the steering-wheel.

It is, by means of-bolts, or otherwise, securely xed to the' deck of the vessel, and is 4Inadeof cast-iron or other suitable material, of cylindrical or other suitable form.` f

On the inner face of the shell A, are formed in the s'amegtwo or more straight vertical grooves a et, as shown in fig. 8.

`Into the shell A, which has a removable cover, B, is itteda smaller upright cylinder, C, which. is allowed to turn freely, and which is coupled together with the The couplings b c, on the cylinder G spectivcly, mesh into each other, as shown. f E vis a screw, suspended vertically within the tube from some arms d d of the case A. It projects either directly through the cover B of the case, so that the Vsteering-wheel can be 'horizontally' y affixed to it, ora bevel-gear wheel, e, may be secured -to the screw E, to connect the same with a horizontal shaft, F, on which thel steering-wheel G is mounted.

There are as many convoluted or inclined slots f,'

formed through thecylinder C, asthereare grooves a in the shellA. l

H is a nut, fitted upon the screw E.

It has projecting arms g g, that it through the slots j, and into the grcoves'a, as shown in g. v8.

It will be `seen that as the steering-wheel into a rotary direction, the screwE connected with it will,by `being turned, raise or lower the nut H,

nal cylinder or-cas'ing and the snp-` and rudder reis worked i whicl1,by having its arms g work in the convoluted v grooves-without being able to turn itself, causes the `inner or working cylinder C, which is fixed to the rndder, to rotate, and to thereby give the necessary niotion to the rudder.

A pointer, I, may be afiixed of the rudder. v

vIn case the apparatus should get out of order, it

tothe tube `C, or tofthe rudder-head, to indicate at alltinies the position may be readily detached from the'y rudder-head, and a y lever, J, be inserted in a. recess formed in the coupling c, as shown in iig. 7, so that the rudder maybe worked by the ordinary chain or rope.

HI claiml as new, and desire to secure `by Letters 1. '.lhe ,combination of a cylinder with` internal angesd, pelforated rest to'support the swivelled screw E, and removable Cap B, all constructed to receive the operative-mechanism in the manner shownv ing couplings b b. appended to its base, with the couplings c c, as and for the pnrpose specified.

The above specicationof my invention signed by me, this 31stv day of July, 1868.

- HENRY E. SKINNER.

Witnesses: THOMAS HOPCBAFL; 124 Fenchurch Street,

W. IRISH. London. 

